baber/WOPTO huggingface dataset:
Patent CA-2098710-C (CA)
Title: Dosage form for micro-bubble echo contrast agents
Inventor: BELLER KLAUS-DIETER
IPC: B01F15/02
Filed: 1991-12-23
Granted: 2002-05-28
Abstract: A dosage form for micro bubble echo contrast media which comprises a syringe (6) and a mixing chamber (1) which is connected thereto and contains a predeter-mined amount of gas, plus a second syringe is described. the novel dosage form allows easy, standardised preparation of echo contrast media and gives high contrast (Fig. 3).
Patent CA-2105606-C (CA)
Title: Method for the determination of lupus anticoagulant antibodies that cause thrombosis
Inventor: MULLER-BERGHAUS GERT
IPC: G01N33/96
Filed: 1993-09-07
Granted: 2004-07-06
Abstract: In order to determine lupus anticoagulant (LA) antibodies in blood, plasma or tissue samples by means of the inhibitory effect of these antibodies on the neutralizing effect of protein C on the blood coagulation system, a defined amount of activated protein C is added to the sample, after incubation the remaining amount of a physiological substrate of protein C or protein S activity in the sample is determined according to known methods and the amount of LA antibodies present is calculated by comparison with a standard containing no LA antibodies. The method according to the present invention can be used to diagnose a predisposition to thrombotic events or disease-dependent risk of thrombosis as well as to monitor a therapy.
Patent CA-2107814-C (CA)
Inventor: NEUMANN TOM
IPC: A47B91/06
Filed: 1993-10-06
Granted: 1999-08-03
Abstract: A floor protector protects floors against damage from heavy objects supported on or sliding across the floor and reduces the effort required to move the objects. The protector includes an elongate web with raised lips along its opposite edges and interlocking formations on its opposite ends. The interlocking formations allow the connection of plural strips end-to-end.
Patent CA-2108812-C (CA)
Title: Cell switching system node resequencing device
Inventor: THERASSE YVES
IPC: H04L12/56
Filed: 1993-10-20
Granted: 1999-02-16
Abstract: The device consists of a time label generator, for assigning a time label to each cell; a buffer memory; an address memory for memorizing the address of the first subcell of each cell; a link memory; a circuit for finding the address of the buffer memory containing the first subcell of a cell. This circuit contains: a memory accessible through the content, for memorizing a cell identifier when a cell is put on hold, each identifier identifying a time interval during which the waiting period will expire and at least one output from which the cell is to be transmitted; and a marker memory for each output, a marker being recorded as soon as a cell is placed on hold, to detect the time interval during which the cell's waiting period expires; the markers being read starting from the oldest one and only those corresponding to expired times being validated, when the output under consideration shows that it is available; and each marker being eventually common to several cells. This invention can be applied to asynchronous transfer telecommunications networks.
Patent CA-2110426-C (CA)
Title: Telecommunications equipment
Inventor: VAN GAAL ADRIANUS P
IPC: H04B1/03
Filed: 1993-12-01
Granted: 2001-01-16
Abstract: A telecommunications shelf module is provided having electronic circuit packs and conductors extending from the circuit packs to an interface station for connection to conductors exterior of the pack, the module detachably mountable in a frame. The module preferably has a cooling arrangement included in its structure.
Patent CA-2113290-C (CA)
Inventor: BLAKE JULIAN GASKILL
IPC: G01R27/26
Filed: 1994-01-13
Granted: 1999-11-30
Abstract: A wafer position and clamp sensor. A circuit 114 monitors capacitance between two electrodes 22,24 within a wafer support 14,16,18,20. With no wafer 12 on the support, the capacitance falls in one range, with the wafer in place but not clamped, the capacitance falls in a second range and with the wafer held in place by an electrostatic attraction the capacitance falls in a third range.  The sensed capacitance is converted to a frequency and then a DC voltage level 164 that can easily be sensed and used to confirm wafer placement and then confirm wafer clamping.
Patent CA-2114234-C (CA)
Title: Herbicidal compositions
Inventor: HIRABAYASHI YOSHINORI
IPC: A01N43/90
Filed: 1993-07-09
Granted: 2003-03-18
Abstract: A composition comprising a condensed heterocyclic derivative and an N-alkyl-2-pyrrolidone. Particularly high effects can be obtained with a composition wherein the ratio of the condensed heterocyclic derivative to the N-alkyl-2-pyrrolidone is within a range of from 2:1 to 1:1000.
Patent CA-2114268-C (CA)
Inventor: NEZU TOSHIYA
IPC: H03L7/14
Filed: 1994-01-26
Granted: 1999-08-10
Abstract: A clock synchronizing circuit comprises a voltage controlled oscillator (VCO) for producing an output signal whose oscillation frequency changes in response to control signals. A phase comparator compares a phase of an input signal and a phase of the output signal to thereby generate a phase difference signal. A filter filters the phase difference signal to thereby output a filtered phase difference signal. A frequency synchronizing circuit responsive to the filtered phase difference signal generates a first compensation signal for controlling a frequency of the output signal. A phase synchronizing circuit responsive to the filtered phase difference signal generates a second compensation signal for controlling a phase of the output signal. A signal supplying circuit feeds the first and second compensation signals as said control signals.
Patent CA-2114883-C (CA)
Title: Cushion
Inventor: MAJKUTEWICZ TED
IPC: A41D27/12
Filed: 1994-02-03
Granted: 1997-05-27
Abstract: This invention relates to a chafing device for obese individuals having a plurality of tubular body portions with air holes therethrough; a plurality of webbed portions connecting said plurality of tubular body portions, respectively, and fasteners for fastening the shield between rubbing parts of the individuals so as to minimize chafing between the rubbing parts and permit passage of air through the air holes.
Patent CA-2117943-C (CA)
Inventor: BAUGH JOHN LINDLEY
IPC: E21B43/10
Filed: 1994-10-12
Granted: 2005-03-15
Abstract: A seal useful for high temperature and high-differential pressures, particularly in sour gas wells, is disclosed. The preferred embodiment of the seal is an elongated member having features akin to a chevron-type seal at at least one end, coupled with at least one interference seal. A pocket is created in between these two elements which can trap atmospheric pressure, thereby enhancing the ability of downhole well fluids to compress the seal against a mandrel for facilitating its installation in a liner bore. The additional structural rigidity provided by the variety of alternative designs presented overcomes the tendency of the chevron portion of the seal to fail to seat due to downhole fluid pressures, displacing the chevron portion out of shape prior to its insertion into a liner bore.
Patent CA-2122080-C (CA)
Inventor: NARAYAN SANKAR B
IPC: A01N59/20
Filed: 1994-04-25
Granted: 2007-04-17
Abstract: A method of inhibiting algae growth on an asphalt shingle surface exposed to varying humidity using a blend of copper-containing algae-resistant granules and non-algae-resistant granules is presented. The copper-containing algae-resistant granules comprise a substrate granule having at least one inner ceramic coating layer comprising cuprous oxide and a seal coating having a thickness covering the inner layer and which is at time to devoid of copper.
Patent CA-2127416-C (CA)
Inventor: LOVIN JOSEPH R
IPC: B41F23/04
Filed: 1994-07-05
Granted: 2004-12-14
Abstract: A system and method for the printing of substrates for use in food packaging and, more particularly, a flexographic printing system and method for applying and curing radiation cured inks to a flexible, heat shrinking web employing a combination of UV radiation and EB radiation.
Patent CA-2128997-C (CA)
Title: Enhanced electrosurgical apparatus
Inventor: DELAHUERGA LOUIS
IPC: A61B18/00
Filed: 1991-03-13
Granted: 1995-05-30
Abstract: A device for enhancing the safety and efficiency of a hand-operated electrosurgical pencil having an exposed electrode with a distal end defining a tip for cutting biological tissue, which device comprises a nose piece adapted to be mounted about said electrode and defining at least one pathway for a stream of gas which shrouds the electrode at or near the tip thereof, and electrosurgical apparatus incorporating the device.
Patent CA-2132945-C (CA)
Title: Method and apparatus for confirming delivery of files in a file broadcast system
Inventor: KELLY FRANK M JR
IPC: H04L12/18
Filed: 1994-09-26
Granted: 1999-06-01
Abstract: A method and apparatus for confirming delivery of files from a hub server to multiple receiving sites in a file broadcast system. Confirmation is assured in a file broadcast system, even where receiving sites are linked to a hub server via a connectionless network, by requiring receiving sites to delay transmission of confirmation by an amount of time which is different for each receiving site, by having the hub server aggregate multiple confirmations into a single acknowledgement message, and by requiring each receiving site to retransmit a confirmation if an acknowledgement message is not received from the hub server within a timeout period.
Patent CA-2134730-C (CA)
Inventor: HENRICSON KAJ
IPC: D21C11/00
Filed: 1994-10-31
Granted: 2003-12-30
Abstract: A method of total chlorine-free bleaching to a brightness of ISO 82-90 uses an acid stage and a superatmospheric pressure peroxide stage. The acid stage (which may be the only acid stage) may comprise a Q stage or a Z (ozone) stage, in which metals in the pulp are freed from pulp fibers and become dissolved in the surrounding liquid. The pulp is then subjected to fractional washing to produce at least two wash filtrates, the first filtrate having over 50% of the dissolved metals from the pulp. The first filtrate is ultimately returned (e.g. through brown stock washing) to the black liquor recovery system of the pulp mill so that the metals precipitate on organics in the black liquor recovery system due to the alkaline pH of the black liquor.     Other filtrates from the fractional washing are used to wash the pulp just before the acidic (e.g. ozone) stage. Acid and/or a chelating agent are added to the wash liquid during fractional washing so that the pH of the first filtrate is six or less, and magnesium may be added to the pulp while it has an acidic pH just prior to the peroxide bleaching stage. From the fractional washing stage the filtrates may each have a flow volume of 0.5-7 cubic meters per ton of pulp. A further (ZP) stage may be added if it is desired to achieve a brightness of ISO 89 or above.
Patent CA-2140225-C (CA)
Title: Switch assembly
Inventor: MALONE PETER G
IPC: H01H23/00
Filed: 1995-01-13
Granted: 1999-12-28
Abstract: A switch assembly having a rocker type actuator user rotatable for sequentially actuating plural switches. The rocker contacts, off center a lever beam supported at its end by plungers disposed to actuate the individual membrane switches or optical activators. User applications of an initial force to the rocker causes the lever beam to pivot about the remote plunger for actuation of the switch closest to the rocker contact point. After actuation of the closest switch, user application of a greater force continues rotation of the rocker to cause the lever beam to pivot about the closest plunger for causing actuation of the remote switch. Overtravel is shared by beam deflection of the lever and columnar compression of cylindrical tower portions of the resilient membranes.
Patent CA-2140406-C (CA)
Title: Method and apparatus for reducing water vapour in exhaust gas from evaporative heat exchange systems
Inventor: GENGE JOHN P
IPC: F28C1/16
Filed: 1995-01-17
Granted: 2000-10-31
Abstract: A method for reducing the amount of water vapour in gas exhausted from closed loop evaporative heat exchange systems wherein the low energy air which has been warmed and moistened within the heat exchange system is mixed with cooler air to condense moisture out of the low energy air for recovery and reuse. Various methods and apparatus for controlling and effecting the mixing are disclosed.
Patent CA-2143112-C (CA)
Inventor: MCGUIRE DENNIS P
IPC: F16F13/08
Filed: 1993-08-19
Granted: 1999-04-27
Abstract: A damping device which provides superior damping stiffness K" has linear damping characteristics as a function of amplitude and for which the temperature sensitivities of stiffnesses K*, K", K' have been minimized. The device includes a first and second fluid-filled chambers (26 and 28) which are interconnected by a passageway (43). The length and diameter of the passageway, as well as the fluid viscosity, are chosen to give the optimum damping characteristics. Further, a plurality of spring loaded pressure relief valves (82) are integrated into the assembly to allow more flow area to open when a threshold pressure is encountered, thereby reducing the internal pressures and dynamic stiffness K* at cold temperatures.
Patent CA-2144098-C (CA)
Title: Endoscopic instrument for ligating varix
Inventor: HOSODA MASAYUKI
IPC: A61B17/12
Filed: 1995-03-07
Granted: 1998-10-20
Abstract: An endoscopic ligating instrument has an outer tube having a rear end on which the front end of an endoscope is mounted.  An inner tube with a trip wire connected thereto is axially movably inserted in the outer tube.  When the inner tube is moved rearwardly, the inner tube is urged to move forwardly by a spring.  Three ligating O-rings are mounted respectively at axially equally spaced positions on the outer circumferential surface of a portion of the inner tube which projects from the outer tube.  Four arms extending forwardly from the outer tube are disposed respectively at circumferentially equally spaced positions over the outer circumferential surface of the inner tube.  Each of the arms has teeth disposed behind the ligating O-rings, respectively, and having front pushing  surfaces for pushing the ligating O-rings forwardly when the inner tube is moved rearwardly and rear slanted surfaces for riding over the ligating O-rings and spreading the arms radially outwardly when the inner tube is moved forwardly.  The endoscopic ligating instrument can successively ligate a plurality of varices in a body cavity of a patient into which the endoscope is inserted.
Patent CA-2145133-C (CA)
Title: Process and device for deburring and chamfering the edges of holes made in a plate holding a bundle of tubes
Inventor: MARTINEAU FRANCOIS
IPC: B23D79/02
Filed: 1995-03-21
Granted: 2007-06-19
Abstract: The technique includes finishing the holes (2) formed in a plate (1), the holes being intended to receive a series of parallel tubes (3) in a regular pattern. Each hole is larger than the tube to be supported, but includes at least three contact surfaces (4) which project inwards in order to support the tube. In order to smooth and bevel the edges of the holes, partic. the contact surfaces, a rotary brush is moved over the plate surface. The brush moves along a series of parallel lines (5a,5b,5c), each of which forms a tangent to a selection of contact surfaces. By means of a sequence of passes over the plate, all surfaces may be smoothed.
Patent CA-2148630-C (CA)
Inventor: ZIRNGIBL MARTIN
IPC: H04B10/272
Filed: 1995-05-04
Granted: 1999-06-15
Abstract: A wavelength division multiplexing multi-frequency optical source is used to provide downstream transmission of information signals at discrete optical wavelengths from a central office to a plurality of optical network units. A passive optical demultiplexer in a remote node routes the downstream information signals to the optical networks according to optical wavelength.  Broadband incoherent sources are used to provide upstream information signals at discrete optical wavelengths which are multiplexed and then routed to the central office for demultiplexing by the passive optical demultiplexer.  A wavelength selective coupler in the central office and in each optical network unit combines and segregates downstream and upstream signals of different optical wavelengths for routing to a desired destination.
Patent CA-2149291-C (CA)
Title: Portable lighting fixture
Inventor: SUMER SULEYMAN O
IPC: F21L14/00
Filed: 1995-05-12
Granted: 1998-12-08
Abstract: This  portable  lighting  fixture  comprises  a  lamp housing containing a lamp and a reflector that projects light from the lamp through an opening in the front face of the housing.  A protective grill on the housing registers with the front-face opening in a location spaced from the opening.   Normally located beneath the housing is a base that normally supports the housing.  The grill has an outer periphery  that  appears  rounded  when  viewed  from  a horizontal reference plane located above the housing when the housing is in its normal location atop the base.  Tip-over of the fixture onto a horizontal surface that causes the central peripheral portion of the grill to fall against the horizontal surface results in the fixture rolling over in a  lateral direction on the rounded grill  following initial contact between the central peripheral portion of the grill and the horizontal surface.   This roll-over action causes heat that is emitted through the front-face opening of the fixture to be directed via a path that is oriented to produce reduced heating of the support surface under these conditions.
Patent CA-2155695-C (CA)
Inventor: MARTINITZ HANS-PETER
IPC: B23Q11/00
Filed: 1995-08-09
Granted: 2005-01-25
Abstract: In a device for the disposal of liquid media, such as cooling-lubricating liquids containing production residue, such as chips from industrial processes, wherein these media can be returned via at least one pipe line to a return reservoir and from there through a pipe line connected near the bottom to at least one collecting tank by means of at least one return pump, it is intended to prevent deposits of production residue in the return reservoir and to clean it. This is accomplished in that the return reservoir has the approximate shape of a standing circular cylinder, in which at least one pipe line supplying liquid media terminates approximately tangentially. Because of this a circulating flow of the liquid media is generated in the return reservoir, which cleans the interior wall of the return reservoir and prevents the deposit of production residues.
Patent CA-2157206-C (CA)
Inventor: MULHOLLAND ANTHONY G
IPC: A47B96/14
Filed: 1995-08-30
Granted: 2004-08-03
Abstract: A storage rack to support pallets and the like includes an upright frame structure having at least one pair of generally parallel, laterally spaced support beams across which a pallet or the like is to be supported. At least one transverse support member spans the support beams. Retainers act between the support beams and opposed ends of the support member and are in the form of complimentary formations on the support beams and the support member. The formations are configured such that the support member must undergo torsion to engage the formations at its opposed ends with the complimentary formations on the support beams.
Patent CA-2157574-C (CA)
Title: Activator formulation and composition utilizing same
Inventor: BACHMANN ANDREW G
IPC: C09J4/00
Filed: 1994-03-03
Granted: 2001-01-02
Abstract: A multi-part composition is provided which is suitable for use as an adhesive, a potting compound, a coating or a sealant. It consists of a polymerizable acrylate formulation and an activating formulation, the latter usually comprising an amine-aldehyde condensation product diluted with a liquid vinyl ether; liquid epoxides may also be included as diluents in the activating formulation.
Patent CA-2157779-C (CA)
Title: Tape display device
Inventor: BROWN FRANK CHARLES
IPC: B65H23/08
Filed: 1993-09-24
Granted: 2004-01-13
Abstract: A tape display device comprises a housing (10) supporting a pair of parallel rollers (11, 12) between which a tape (14) is adapted to be wound back and forth to display different visual information contained on the tape. The rollers are driven by a continuous belt (20) via an electric motor (17). One of the rollers is a tension roller (11) which maintains tension in the tape as it is would back and forth between the rollers. The tension roller consists of a cylinder (25) having end caps (26) for providing bearing surfaces which bear on respective bushes (27) in the housing to provide rotational mounting of the roller. A drive pinion (22) on the outside of the housing has a stub-axle (28) which extends through the bush and end cap and into the cylinder. A spiral tension spnng (29) is attached between the end of the stub axle and a flange of the end cap (26). The spring is located within the cylinder and allows relative movement between the cylinder and pinion and maintains tension in the tape as the two rollers rotate in synchronism and the diameter of the tape on each roller varies.
Patent CA-2174205-C (CA)
Title: Rack for kitchen ware
Inventor: CZAPLINSKI CHERYL E
IPC: A47L19/04
Filed: 1996-04-15
Granted: 2006-07-04
Abstract: The rack retains lids and like-objects for washing and drying. The rack has a frame provided with upstanding dividers between which the objects are retained. A retainer is pivotally attached to the frame by trunnions and swings between closed and open positions. In the closed position, the retainer is over the objects and confines them between the dividers. In the open position, the retainer allows the objects to be removed. A boss is provided for selectively securing the retainer in the closed position.
Patent CA-2175790-C (CA)
Title: Valve pilote reagissant a la temperature et comportant un dispositif d'actionnement en un alliage a effet de memoire
Inventor: EWING WILLIAM A
IPC: F16K31/64
Filed: 1993-11-04
Granted: 2004-10-12
Abstract: L'invention concerne une valve à diaphragme pour éviter de s'ébouillanter commandée par un dispositif à effet de mémoire, comportant un logement (10) de valve que traverse un flux de fluide et une chambre pilote. Il y a un premier siège (23) de valve dans le logement et un second siège (13) de valve dans le logement en aval du premier siège de valve. Une valve pilote se trouve dans la chambre du logement de la valve pour empêcher le fluide de circuler dans la chambre dans laquelle se trouve l'élément de valve pilote et un premier élément de valve (42) est retenu en place dans la première valve par la valve pilote. Des moyens (36) sont prévus comprenant un dispositif à effet de mémoire pour ajuster les positions ouverte et fermée de la valve pilote, en fonction de la température du fluide circulant dans la valve à effet de mémoire.